Cave Surf Report & Forecast

Mafra, Portugal

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Current Surf Conditions at Cave

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Last Updated:15h ago
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🌊 Surf Quality Timeline (Week)

Best windows in green
Sun
Mon
Tue
Wed
Thu
Fri
Sat

SELECT DAY

10:00 AM Europe/London
Surf Quality: GOOD
12 AM6 AM12 PM6 PM11 PM
SUN

🌊 Surf Quality Timeline

Best windows in green
12AM6AM12PM6PM11PM

🌬️ WIND

N
E
S
W
6
kt

🌊 SWELL

N
E
S
W
2.9
ft
🌊
SWELL
HEIGHT
2.9ft
🌊
SWELL
PERIOD
7s
💨
WIND GUSTS
6kt
🌡️
AIR TEMP
20°C
🌊
SECONDARY
SWELL
0.9ft @
11s
🌧️
PRECIPITATION
0mm
SURF QUALITY
GOOD
Good surfing conditions. Sweet 2.9ft waves with mixed swell with very light winds Note: winds from E would be better.

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📊 7-Day Detailed Forecast

Expandable daily forecasts with hourly details

Sunday

Aug 9
FAIR10 good hours
🌊 2.6-3.1ft 💨 5-11kt 🌡️ 20-21°C
TimeQualitySwell HeightPeriodSwell DirWind SpeedWind DirGustsAir TempWater TempRain
12:00 AM
FAIR
2.6ft7sWNW9ktNW12kt21°C21°C0mm
1:00 AM
FAIR
2.8ft7sWNW8ktNW11kt21°C21°C0mm
2:00 AM
GOOD
2.8ft7sWNW8ktNNW10kt21°C21°C0mm
3:00 AM
GOOD
2.8ft7sWNW7ktNNW10kt21°C21°C0mm
4:00 AM
GOOD
2.8ft7sW7ktNNW9kt21°C21°C0mm
5:00 AM
GOOD
2.8ft7sW6ktNNW8kt21°C20°C0mm
6:00 AM
GOOD
2.9ft7sW6ktNNW7kt21°C20°C0mm
7:00 AM
GOOD
2.9ft7sW5ktNNW6kt21°C20°C0mm
8:00 AM
GOOD
2.9ft7sW5ktNNW6kt20°C20°C0mm
9:00 AM
GOOD
2.9ft7sW6ktNNW6kt20°C20°C0mm
10:00 AM
GOOD
2.9ft7sW6ktN6kt20°C20°C0mm
11:00 AM
GOOD
2.9ft7sW7ktNNW8kt20°C20°C0mm
12:00 PM
FAIR
2.9ft7sW8ktNNW10kt20°C21°C0mm
1:00 PM
FAIR
2.9ft7sW9ktNNW11kt20°C21°C0mm
2:00 PM
FAIR
3ft7sW9ktNNW12kt21°C21°C0mm
3:00 PM
FAIR
3ft7sW9ktNNW12kt21°C21°C0mm
4:00 PM
FAIR
3ft7sW9ktNNW12kt21°C21°C0mm
5:00 PM
FAIR
3.1ft7sW10ktNNW12kt21°C21°C0mm
6:00 PM
FAIR
3.1ft7sW10ktNNW13kt21°C21°C0mm
7:00 PM
FAIR
3.1ft7sWNW10ktNNW13kt21°C21°C0mm
8:00 PM
POOR
3ft7sW10ktNNW14kt21°C21°C0mm
9:00 PM
POOR
2.9ft7sW11ktNNW15kt21°C21°C0mm
10:00 PM
POOR
2.9ft7sW11ktN16kt21°C21°C0mm
11:00 PM
POOR
2.9ft7sWNW11ktN16kt21°C21°C0mm

Monday

Aug 10
FAIR3 good hours
🌊 1.7-2.9ft 💨 9-13kt 🌡️ 20-21°C

Tuesday

Aug 11
POORCheck individual hours
🌊 1.0-1.6ft 💨 11-14kt 🌡️ 20-21°C

Wednesday

Aug 12
POORCheck individual hours
🌊 1.6-2.8ft 💨 11-16kt 🌡️ 20-21°C

Thursday

Aug 13
POORCheck individual hours
🌊 2.1-2.8ft 💨 12-17kt 🌡️ 20-21°C

Friday

Aug 14
FAIRCheck individual hours
🌊 2.1-3.5ft 💨 10-15kt 🌡️ 20-21°C

Saturday

Aug 15
GOOD10 excellent hours
🌊 2.4-3.6ft 💨 1-11kt 🌡️ 20-22°C

Forecast Summary

Best Day:Check forecast for optimal conditions
Average Swell:2.6ft @ 7s
Wind Conditions:5-13kt NW
Water Temperature:19-21°C

Local Knowledge & Surf Guide

Local Knowledge

Cave (also known as "The Basement" or "Sete Bafos") in Portugal is widely regarded as the heaviest and most dangerous wave in the Ericeira World Surfing Reserve, suitable only for expert surfers. This is an extremely shallow, fast, and hollow right-hand reef break that breaks over a rocky platform, generating intense suction that forms a powerful, square barrel. The spot is inconsistent, requiring significant swell to work. When it does, optimal conditions are provided by a Northwest swell and offshore winds from the East (NE-SE), typically surfed during mid- to high-tide. Hazards are extreme, including impact with a razor-sharp, shallow reef, making a mistake potentially life-threatening. The best, most powerful waves occur in the autumn and winter months.

Best Swell Direction: W
Bottom Type: Sand and Reef
Location: Town: Mafra | Village: Santo Isidoro | Neighborhood: Ribamar | County: Lisboa | Country: Portugal | Postcode: 2640-027 | Road: Trilhos do Mar | Full Address: Trilhos do Mar, Ribamar, Santo Isidoro, Mafra, Lisboa, 2640-027, Portugal

Ideal Conditions

This spot performs best under these specific conditions. Forecasts take these into account when rating surf quality.

Ideal Swell DirectionNW
Ideal Wind DirectionE

🌊 Tide Table

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🌅 Sunrise & 🌙 Moon

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